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alazhar
2020-01-02 22:20:31 +07:00
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libraries/cms/schema/changeitem/index.html Normal file
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<!DOCTYPE html><title></title>

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libraries/cms/schema/changeitem/mysql.php Normal file
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<?php
/**
* @package Joomla.Libraries
* @subpackage Schema
*
* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
*/
defined('_JEXEC') or die;
/**
* Checks the database schema against one MySQL DDL query to see if it has been run.
*
* @package Joomla.Libraries
* @subpackage Schema
* @since 2.5
*/
class JSchemaChangeitemMysql extends JSchemaChangeitem
{
/**
* Checks a DDL query to see if it is a known type
* If yes, build a check query to see if the DDL has been run on the database.
* If successful, the $msgElements, $queryType, $checkStatus and $checkQuery fields are populated.
* The $msgElements contains the text to create the user message.
* The $checkQuery contains the SQL query to check whether the schema change has
* been run against the current database. The $queryType contains the type of
* DDL query that was run (for example, CREATE_TABLE, ADD_COLUMN, CHANGE_COLUMN_TYPE, ADD_INDEX).
* The $checkStatus field is set to zero if the query is created
*
* If not successful, $checkQuery is empty and , and $checkStatus is -1.
* For example, this will happen if the current line is a non-DDL statement.
*
* @return void
*
* @since 2.5
*/
protected function buildCheckQuery()
{
// Initialize fields in case we can't create a check query
$this->checkStatus = -1; // change status to skipped
$result = null;
// Remove any newlines
$this->updateQuery = str_replace("\n", '', $this->updateQuery);
// Fix up extra spaces around () and in general
$find = array('#((\s*)\(\s*([^)\s]+)\s*)(\))#', '#(\s)(\s*)#');
$replace = array('($3)', '$1');
$updateQuery = preg_replace($find, $replace, $this->updateQuery);
$wordArray = explode(' ', $updateQuery);
// First, make sure we have an array of at least 6 elements
// if not, we can't make a check query for this one
if (count($wordArray) < 6)
{
// Done with method
return;
}
// We can only make check queries for alter table and create table queries
$command = strtoupper($wordArray[0] . ' ' . $wordArray[1]);
if ($command === 'ALTER TABLE')
{
$alterCommand = strtoupper($wordArray[3] . ' ' . $wordArray[4]);
if ($alterCommand == 'ADD COLUMN')
{
$result = 'SHOW COLUMNS IN ' . $wordArray[2] . ' WHERE field = ' . $this->fixQuote($wordArray[5]);
$this->queryType = 'ADD_COLUMN';
$this->msgElements = array($this->fixQuote($wordArray[2]), $this->fixQuote($wordArray[5]));
}
elseif ($alterCommand == 'ADD INDEX' || $alterCommand == 'ADD UNIQUE')
{
if ($pos = strpos($wordArray[5], '('))
{
$index = $this->fixQuote(substr($wordArray[5], 0, $pos));
}
else
{
$index = $this->fixQuote($wordArray[5]);
}
$result = 'SHOW INDEXES IN ' . $wordArray[2] . ' WHERE Key_name = ' . $index;
$this->queryType = 'ADD_INDEX';
$this->msgElements = array($this->fixQuote($wordArray[2]), $index);
}
elseif ($alterCommand == 'DROP INDEX')
{
$index = $this->fixQuote($wordArray[5]);
$result = 'SHOW INDEXES IN ' . $wordArray[2] . ' WHERE Key_name = ' . $index;
$this->queryType = 'DROP_INDEX';
$this->checkQueryExpected = 0;
$this->msgElements = array($this->fixQuote($wordArray[2]), $index);
}
elseif ($alterCommand == 'DROP COLUMN')
{
$index = $this->fixQuote($wordArray[5]);
$result = 'SHOW COLUMNS IN ' . $wordArray[2] . ' WHERE Field = ' . $index;
$this->queryType = 'DROP_COLUMN';
$this->checkQueryExpected = 0;
$this->msgElements = array($this->fixQuote($wordArray[2]), $index);
}
elseif (strtoupper($wordArray[3]) == 'MODIFY')
{
// Kludge to fix problem with "integer unsigned"
$type = $this->fixQuote($wordArray[5]);
if (isset($wordArray[6]))
{
$type = $this->fixQuote($this->fixInteger($wordArray[5], $wordArray[6]));
}
$result = 'SHOW COLUMNS IN ' . $wordArray[2] . ' WHERE field = ' . $this->fixQuote($wordArray[4]) . ' AND type = ' . $type;
$this->queryType = 'CHANGE_COLUMN_TYPE';
$this->msgElements = array($this->fixQuote($wordArray[2]), $this->fixQuote($wordArray[4]), $type);
}
elseif (strtoupper($wordArray[3]) == 'CHANGE')
{
// Kludge to fix problem with "integer unsigned"
$type = $this->fixQuote($this->fixInteger($wordArray[6], $wordArray[7]));
$result = 'SHOW COLUMNS IN ' . $wordArray[2] . ' WHERE field = ' . $this->fixQuote($wordArray[4]) . ' AND type = ' . $type;
$this->queryType = 'CHANGE_COLUMN_TYPE';
$this->msgElements = array($this->fixQuote($wordArray[2]), $this->fixQuote($wordArray[4]), $type);
}
}
if ($command == 'CREATE TABLE')
{
if (strtoupper($wordArray[2] . $wordArray[3] . $wordArray[4]) == 'IFNOTEXISTS')
{
$table = $wordArray[5];
}
else
{
$table = $wordArray[2];
}
$result = 'SHOW TABLES LIKE ' . $this->fixQuote($table);
$this->queryType = 'CREATE_TABLE';
$this->msgElements = array($this->fixQuote($table));
}
// Set fields based on results
if ($this->checkQuery = $result)
{
// Unchecked status
$this->checkStatus = 0;
}
else
{
// Skipped
$this->checkStatus = -1;
}
}
/**
* Fix up integer. Fixes problem with MySQL integer descriptions.
* If you change a column to "integer unsigned" it shows
* as "int(10) unsigned" in the check query.
*
* @param string $type1 the column type
* @param string $type2 the column attributes
*
* @return string The original or changed column type.
*
* @since 2.5
*/
private function fixInteger($type1, $type2)
{
$result = $type1;
if (strtolower($type1) == "integer" && strtolower(substr($type2, 0, 8)) == 'unsigned')
{
$result = 'int(10) unsigned';
}
return $result;
}
/**
* Fixes up a string for inclusion in a query.
* Replaces name quote character with normal quote for literal.
* Drops trailing semi-colon. Injects the database prefix.
*
* @param string $string The input string to be cleaned up.
*
* @return string The modified string.
*
* @since 2.5
*/
private function fixQuote($string)
{
$string = str_replace('`', '', $string);
$string = str_replace(';', '', $string);
$string = str_replace('#__', $this->db->getPrefix(), $string);
return $this->db->quote($string);
}
}

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libraries/cms/schema/changeitem/postgresql.php Normal file
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<?php
/**
* @package Joomla.Libraries
* @subpackage Schema
*
* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
*/
defined('_JEXEC') or die;
/**
* Checks the database schema against one PostgreSQL DDL query to see if it has been run.
*
* @package Joomla.Libraries
* @subpackage Schema
* @since 3.0
*/
class JSchemaChangeitemPostgresql extends JSchemaChangeitem
{
/**
* Checks a DDL query to see if it is a known type
* If yes, build a check query to see if the DDL has been run on the database.
* If successful, the $msgElements, $queryType, $checkStatus and $checkQuery fields are populated.
* The $msgElements contains the text to create the user message.
* The $checkQuery contains the SQL query to check whether the schema change has
* been run against the current database. The $queryType contains the type of
* DDL query that was run (for example, CREATE_TABLE, ADD_COLUMN, CHANGE_COLUMN_TYPE, ADD_INDEX).
* The $checkStatus field is set to zero if the query is created
*
* If not successful, $checkQuery is empty and , and $checkStatus is -1.
* For example, this will happen if the current line is a non-DDL statement.
*
* @return void
*
* @since 3.0
*/
protected function buildCheckQuery()
{
// Initialize fields in case we can't create a check query
$this->checkStatus = -1; // change status to skipped
$result = null;
// Remove any newlines
$this->updateQuery = str_replace("\n", '', $this->updateQuery);
// Fix up extra spaces around () and in general
$find = array('#((\s*)\(\s*([^)\s]+)\s*)(\))#', '#(\s)(\s*)#');
$replace = array('($3)', '$1');
$updateQuery = preg_replace($find, $replace, $this->updateQuery);
$wordArray = explode(' ', $updateQuery);
// First, make sure we have an array of at least 6 elements
// if not, we can't make a check query for this one
if (count($wordArray) < 6)
{
// Done with method
return;
}
// We can only make check queries for alter table and create table queries
$command = strtoupper($wordArray[0] . ' ' . $wordArray[1]);
if ($command === 'ALTER TABLE')
{
$alterCommand = strtoupper($wordArray[3] . ' ' . $wordArray[4]);
if ($alterCommand === 'ADD COLUMN')
{
$result = 'SELECT column_name FROM information_schema.columns WHERE table_name='
. $this->fixQuote($wordArray[2]) . ' AND column_name=' . $this->fixQuote($wordArray[5]);
$this->queryType = 'ADD_COLUMN';
$this->msgElements = array($this->fixQuote($wordArray[2]), $this->fixQuote($wordArray[5]));
}
elseif ($alterCommand === 'ALTER COLUMN')
{
if (strtoupper($wordArray[6]) == 'TYPE')
{
$type = '';
for ($i = 7; $i < count($wordArray); $i++)
{
$type .= $wordArray[$i] . ' ';
}
if ($pos = strpos($type, '('))
{
$type = substr($type, 0, $pos);
}
if ($pos = strpos($type, ';'))
{
$type = substr($type, 0, $pos);
}
$result = 'SELECT column_name, data_type FROM information_schema.columns WHERE table_name='
. $this->fixQuote($wordArray[2]) . ' AND column_name=' . $this->fixQuote($wordArray[5])
. ' AND data_type=' . $this->fixQuote($type);
$this->queryType = 'CHANGE_COLUMN_TYPE';
$this->msgElements = array($this->fixQuote($wordArray[2]), $this->fixQuote($wordArray[5]), $type);
}
elseif (strtoupper($wordArray[7] . ' ' . $wordArray[8]) == 'NOT NULL')
{
if (strtoupper($wordArray[6]) == 'SET')
{
// SET NOT NULL
$isNullable = $this->fixQuote('NO');
}
else
{
// DROP NOT NULL
$isNullable = $this->fixQuote('YES');
}
$result = 'SELECT column_name, data_type, is_nullable FROM information_schema.columns WHERE table_name='
. $this->fixQuote($wordArray[2]) . ' AND column_name=' . $this->fixQuote($wordArray[5])
. ' AND is_nullable=' . $isNullable;
$this->queryType = 'CHANGE_COLUMN_TYPE';
$this->checkQueryExpected = 1;
$this->msgElements = array($this->fixQuote($wordArray[2]), $this->fixQuote($wordArray[5]), $isNullable);
}
elseif (strtoupper($wordArray[7]) === 'DEFAULT')
{
if (strtoupper($wordArray[6]) == 'SET')
{
$isNullDef = 'IS NOT NULL';
}
else
{
// DROP DEFAULT
$isNullDef = 'IS NULL';
}
$result = 'SELECT column_name, data_type, column_default FROM information_schema.columns WHERE table_name='
. $this->fixQuote($wordArray[2]) . ' AND column_name=' . $this->fixQuote($wordArray[5])
. ' AND column_default ' . $isNullDef;
$this->queryType = 'CHANGE_COLUMN_TYPE';
$this->checkQueryExpected = 1;
$this->msgElements = array($this->fixQuote($wordArray[2]), $this->fixQuote($wordArray[5]), $isNullDef);
}
}
}
elseif ($command === 'DROP INDEX')
{
if (strtoupper($wordArray[2] . $wordArray[3]) == 'IFEXISTS')
{
$idx = $this->fixQuote($wordArray[4]);
}
else
{
$idx = $this->fixQuote($wordArray[2]);
}
$result = 'SELECT * FROM pg_indexes WHERE indexname=' . $idx;
$this->queryType = 'DROP_INDEX';
$this->checkQueryExpected = 0;
$this->msgElements = array($this->fixQuote($idx));
}
elseif ($command == 'CREATE INDEX' || (strtoupper($command . $wordArray[2]) == 'CREATE UNIQUE INDEX'))
{
if ($wordArray[1] === 'UNIQUE')
{
$idx = $this->fixQuote($wordArray[3]);
$table = $this->fixQuote($wordArray[5]);
}
else
{
$idx = $this->fixQuote($wordArray[2]);
$table = $this->fixQuote($wordArray[4]);
}
$result = 'SELECT * FROM pg_indexes WHERE indexname=' . $idx . ' AND tablename=' . $table;
$this->queryType = 'ADD_INDEX';
$this->checkQueryExpected = 1;
$this->msgElements = array($table, $idx);
}
if ($command == 'CREATE TABLE')
{
if (strtoupper($wordArray[2] . $wordArray[3] . $wordArray[4]) == 'IFNOTEXISTS')
{
$table = $this->fixQuote($wordArray[5]);
}
else
{
$table = $this->fixQuote($wordArray[2]);
}
$result = 'SELECT table_name FROM information_schema.tables WHERE table_name=' . $table;
$this->queryType = 'CREATE_TABLE';
$this->checkQueryExpected = 1;
$this->msgElements = array($table);
}
// Set fields based on results
if ($this->checkQuery = $result)
{
// Unchecked status
$this->checkStatus = 0;
}
else
{
// Skipped
$this->checkStatus = -1;
}
}
/**
* Fix up integer. Fixes problem with PostgreSQL integer descriptions.
* If you change a column to "integer unsigned" it shows
* as "int(10) unsigned" in the check query.
*
* @param string $type1 the column type
* @param string $type2 the column attributes
*
* @return string The original or changed column type.
*
* @since 3.0
*/
private function fixInteger($type1, $type2)
{
$result = $type1;
if (strtolower($type1) == 'integer' && strtolower(substr($type2, 0, 8)) == 'unsigned')
{
$result = 'unsigned int(10)';
}
return $result;
}
/**
* Fixes up a string for inclusion in a query.
* Replaces name quote character with normal quote for literal.
* Drops trailing semi-colon. Injects the database prefix.
*
* @param string $string The input string to be cleaned up.
*
* @return string The modified string.
*
* @since 3.0
*/
private function fixQuote($string)
{
$string = str_replace('"', '', $string);
$string = str_replace(';', '', $string);
$string = str_replace('#__', $this->db->getPrefix(), $string);
return $this->db->quote($string);
}
}

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libraries/cms/schema/changeitem/sqlsrv.php Normal file
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<?php
/**
* @package Joomla.Libraries
* @subpackage Schema
*
* @copyright Copyright (C) 2005 - 2013 Open Source Matters, Inc. All rights reserved.
* @license GNU General Public License version 2 or later; see LICENSE
*/
defined('_JEXEC') or die;
/**
* Checks the database schema against one SQL Server DDL query to see if it has been run.
*
* @package Joomla.Libraries
* @subpackage Schema
* @since 2.5
*/
class JSchemaChangeitemSqlsrv extends JSchemaChangeitem
{
/**
* Checks a DDL query to see if it is a known type
* If yes, build a check query to see if the DDL has been run on the database.
* If successful, the $msgElements, $queryType, $checkStatus and $checkQuery fields are populated.
* The $msgElements contains the text to create the user message.
* The $checkQuery contains the SQL query to check whether the schema change has
* been run against the current database. The $queryType contains the type of
* DDL query that was run (for example, CREATE_TABLE, ADD_COLUMN, CHANGE_COLUMN_TYPE, ADD_INDEX).
* The $checkStatus field is set to zero if the query is created
*
* If not successful, $checkQuery is empty and , and $checkStatus is -1.
* For example, this will happen if the current line is a non-DDL statement.
*
* @return void
*
* @since 2.5
*/
protected function buildCheckQuery()
{
// Initialize fields in case we can't create a check query
$this->checkStatus = -1; // change status to skipped
$result = null;
// Remove any newlines
$this->updateQuery = str_replace("\n", '', $this->updateQuery);
// Fix up extra spaces around () and in general
$find = array('#((\s*)\(\s*([^)\s]+)\s*)(\))#', '#(\s)(\s*)#');
$replace = array('($3)', '$1');
$updateQuery = preg_replace($find, $replace, $this->updateQuery);
$wordArray = explode(' ', $updateQuery);
// First, make sure we have an array of at least 6 elements
// if not, we can't make a check query for this one
if (count($wordArray) < 6)
{
// Done with method
return;
}
// We can only make check queries for alter table and create table queries
$command = strtoupper($wordArray[0] . ' ' . $wordArray[1]);
if ($command === 'ALTER TABLE')
{
$alterCommand = strtoupper($wordArray[3] . ' ' . $wordArray[4]);
if ($alterCommand == 'ADD')
{
$result = 'SELECT * FROM INFORMATION_SCHEMA.Columns ' . $wordArray[2] . ' WHERE COLUMN_NAME = ' . $this->fixQuote($wordArray[5]);
$this->queryType = 'ADD';
$this->msgElements = array($this->fixQuote($wordArray[2]), $this->fixQuote($wordArray[5]));
}
elseif ($alterCommand == 'CREATE INDEX')
{
$index = $this->fixQuote(substr($wordArray[5], 0, strpos($wordArray[5], '(')));
$result = 'SELECT * FROM SYS.INDEXES ' . $wordArray[2] . ' WHERE name = ' . $index;
$this->queryType = 'CREATE INDEX';
$this->msgElements = array($this->fixQuote($wordArray[2]), $index);
}
elseif (strtoupper($wordArray[3]) == 'MODIFY' || strtoupper($wordArray[3]) == 'CHANGE')
{
$result = 'SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE table_name = ' . $this->fixQuote($wordArray[2]);
$this->queryType = 'ALTER COLUMN COLUMN_NAME =' . $this->fixQuote($wordArray[4]);
$this->msgElements = array($this->fixQuote($wordArray[2]), $this->fixQuote($wordArray[4]));
}
}
if ($command == 'CREATE TABLE')
{
$table = $wordArray[5];
$result = 'SELECT * FROM sys.TABLES WHERE NAME = ' . $this->fixQuote($table);
$this->queryType = 'CREATE_TABLE';
$this->msgElements = array($this->fixQuote($table));
}
// Set fields based on results
if ($this->checkQuery = $result)
{
// Unchecked status
$this->checkStatus = 0;
}
else
{
// Skipped
$this->checkStatus = -1;
}
}
/**
* Fix up integer. Fixes problem with MySQL integer descriptions.
* If you change a column to "integer unsigned" it shows
* as "int(10) unsigned" in the check query.
*
* @param string $type1 the column type
* @param string $type2 the column attributes
*
* @return string The original or changed column type.
*
* @since 2.5
*/
private function fixInteger($type1, $type2)
{
$result = $type1;
if (strtolower($type1) == 'integer' && strtolower(substr($type2, 0, 8)) == 'unsigned')
{
$result = 'int';
}
return $result;
}
/**
* Fixes up a string for inclusion in a query.
* Replaces name quote character with normal quote for literal.
* Drops trailing semi-colon. Injects the database prefix.
*
* @param string $string The input string to be cleaned up.
*
* @return string The modified string.
*
* @since 2.5
*/
private function fixQuote($string)
{
$string = str_replace('`', '', $string);
$string = str_replace(';', '', $string);
$string = str_replace('#__', $this->db->getPrefix(), $string);
return $this->db->quote($string);
}
}